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1. WO2011085853 - LASER IGNITION DEVICE

Publication Number WO/2011/085853
Publication Date 21.07.2011
International Application No. PCT/EP2010/068258
International Filing Date 25.11.2010
IPC
F02P 13/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
13Sparking plugs structurally combined with other parts of internal-combustion engines
F02P 23/04 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
23Other ignition
04Other physical ignition means, e.g. using laser rays
F02B 19/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
19Engines characterised by precombustion chambers
10with fuel introduced partly into pre-combustion chamber, and partly into cylinder
H01T 13/54 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
13Sparking plugs
54having electrodes arranged in a partly-enclosed ignition chamber
CPC
F02B 19/1061
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
19Engines characterised by precombustion chambers
10with fuel introduced partly into pre-combustion chamber, and partly into cylinder
1019with only one pre-combustion chamber
1023pre-combustion chamber and cylinder being fed with fuel-air mixture(s)
1028pre-combustion chamber and cylinder having both intake ports or valves, e.g. HONDS CVCC
1061with residual gas chamber, e.g. containing spark plug
F02B 19/1095
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
19Engines characterised by precombustion chambers
10with fuel introduced partly into pre-combustion chamber, and partly into cylinder
1095with more than one pre-combustion chamber (a stepped form of the main combustion chamber above the piston is to be considered as a pre-combustion chamber if this stepped portion is not a squish area)
F02B 19/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
19Engines characterised by precombustion chambers
12with positive ignition
F02P 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
13Sparking plugs structurally combined with other parts of internal-combustion engines
F02P 23/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
23Other ignition
04Other physical ignition means, e.g. using laser rays
Y02T 10/12
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
10Road transport of goods or passengers
10Internal combustion engine [ICE] based vehicles
12Improving ICE efficiencies
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE] (AllExceptUS)
  • HERDEN, Werner [DE]/[DE] (UsOnly)
Inventors
  • HERDEN, Werner
Common Representative
  • ROBERT BOSCH GMBH
Priority Data
10 2009 055 038.021.12.2009DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) LASERZÜNDEINRICHTUNG
(EN) LASER IGNITION DEVICE
(FR) DISPOSITIF D'ALLUMAGE LASER
Abstract
(DE) Die Erfindung betrifft eine Laserzündeinrichtung (100) für eine Brennkraftmaschine, insbesondere einen Großgasmotor, mit einer eine primäre Vorkammer (120) aufweisenden Laserzündkerze (110), die dazu ausgebildet ist, Laserstrahlung (20) in die primäre Vorkammer (120) einzustrahlen. Erfindungsgemäß ist eine sekundäre Vorkammer (130) vorgesehen, die so mit der Laserzündkerze (110) und/oder der primären Vorkammer (120) verbindbar ist, dass mindestens ein Überströmkanal (121a, 121b, 121c) der primären Vorkammer (120) eine Fluidverbindung zwischen einem Innenraum (122) der primären Vorkammer (120) und einem Innenraum (132) der sekundären Vorkammer (130) herstellt.
(EN) The invention relates to a laser ignition device (100) for an internal combustion engine, in particular a large gas engine, having a laser spark plug (110) which has a primary antechamber (120) and which is designed to radiate laser radiation (20) into the primary antechamber (120). According to the invention, a secondary antechamber (130) is provided, which is connected to the laser spark plug (110) and/or the primary antechamber (120) in such a way that at least one transfer port (121a, 121b, 121c) of the primary antechamber (120) produces a fluid connection between an interior (122) of the primary antechamber (120) and an interior (132) of the secondary antechamber (130).
(FR) L'invention concerne un dispositif d'allumage laser (100) pour un moteur à combustion interne, en particulier un grand moteur à gaz, comprenant une bougie d'allumage laser (110) présentant une préchambre primaire (120), qui est conçue pour injecter du rayonnement laser (20) dans la préchambre primaire (120). Selon l'invention, il est prévu une préchambre secondaire (130), qui peut être reliée à la bougie d'allumage laser (110) et/ou à la préchambre primaire (120) de telle sorte qu'au moins un canal de trop-plein (121a, 121b, 121c) de la préchambre primaire (120) établit une liaison fluidique entre un espace intérieur (122) de la préchambre primaire (120) et un espace intérieur (132) de la préchambre secondaire (130).
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